JP2019174856A - Three-dimensional display program, three-dimensional model display method and display control apparatus - Google Patents

Abstract

To improve visibility during element search for three-dimensional model.SOLUTION: The above problem is achieved by a three-dimensional model display program that causes a computer to performing a processing to refer a storage unit storing information of each of elements of a three-dimensional model, color each of the elements of the three-dimensional model according to a distance from a reference position of the three-dimensional model to the element, and display the three-dimensional model with the colored elements on a display unit.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a three-dimensional model display program, a three-dimensional model display method, and a display control apparatus.

  In recent years, simulation by numerical analysis is used in various fields. There is a finite element method as a kind of numerical analysis. In the finite element method, an actual model is decomposed into elements and discretized for modeling.

  A technique for modeling so that it is easy to visually discriminate each region in which analysis conditions having different accuracy are set is known. In addition, a technique has been proposed in which model physical quantities are associated with model elements and visualized with color information.

JP 2008-191710 A JP 2014-149792 A

  One type of element used in the element finite method is a tetrahedral element (tetra element). This tetrahedral element has a node at each vertex and shares the node with other tetrahedral elements to ensure continuity of the object. When calculation is performed with such a tetrahedral element, the maximum value of the physical quantity to be evaluated may be located inside the model surface instead of the model surface layer.

  In such a case, in order to specify the position where the maximum value is obtained, the designer or the like hides the surface element (blank), and performs an operation of checking the arrangement state of the internal element when the element is removed. Repeat to find the appropriate nodes and elements. However, the tetrahedron elements are not arranged in order along the layers like the hexahedron elements, and therefore it is difficult for the designer to search for a target node.

  Therefore, in one aspect, an object is to improve the visibility at the time of element search for a three-dimensional model.

  According to one aspect, referring to the storage unit storing information of each element of the three-dimensional model, coloring each element of the three-dimensional model according to the distance from the reference position of the three-dimensional model to the element, There is provided a three-dimensional model display program for causing a computer to perform processing for displaying a three-dimensional model on a display unit with colored elements.

  Visibility at the time of element search for the three-dimensional model can be improved.

It is a figure which shows the example of the model represented by the tetrahedral element. It is a figure for demonstrating the example of a search performed by digging down from the surface of a model. It is a figure which shows the example of a gravity center position. It is a figure which shows the example of color classification for every concentric-circle lattice. It is a figure for demonstrating the example of a search performed by digging down from the surface of a model. It is a figure which shows the hardware structural example of a display control apparatus. It is a figure which shows the function structural example of the display control apparatus in a present Example. It is a figure which shows the example of a data structure. It is a flowchart figure for demonstrating the 1st display control process by the display control part in a present Example. It is a figure for demonstrating a color classification display process. It is a figure which shows the other example of a display of a present Example. It is a flowchart figure for demonstrating the 2nd display control process by the display control part in a present Example. It is a figure for demonstrating a highlight display process. It is a figure which shows the example of the highlight display at the time of digging.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, a designer (hereinafter referred to as a user) creates a model of an actual object by simulation by numerical analysis. Then, using the created model, the user performs verification such as confirming the position where the maximum value of the desired physical quantity exists. When the maximum value of the physical quantity does not exist on the surface of the model, the user searches for the maximum value from the model surface.

  FIG. 1 is a diagram illustrating an example of a model represented by tetrahedral elements. FIG. 1 shows the model 3 displayed on the screen operated by the user. The user searches the maximum value of the physical quantity while selecting a tetrahedral element (tetra element) on the surface of the model 3. Hereinafter, the tetrahedral element is simply referred to as “element”.

  FIG. 2 is a diagram for explaining an example of a search performed by drilling down from the surface of the model. 2 (A) to 2 (D) show examples of screens enlarged on the surface of the model 3 of FIG. FIGS. 2A to 2D show display examples using an existing display method.

  FIG. 2A shows a state in which the user selects the side surface 4a of the element using a pointer or the like on the surface of the model 3 in FIG. In response to this selection, as shown in FIG. 2B, the element including the selected side surface 4a is hidden. When the element on the side surface 4a is not displayed, the two side surfaces 4b and 4c of other elements formed inside the model 3 are displayed.

  In FIG. 2B, when the user further selects the side surface 5a of another element adjacent to the side surface 4a selected in FIG. 2A, the element on the side surface 5a is hidden. Then, as shown in FIG. 2C, the side surface 5b and the side surface 5c of other elements formed inside are displayed. In order to dig further, the user selects the side surface 5c. In FIG. 2D, since the element on the side surface 5c is not displayed, the side surfaces 6a, 6b, and 6c of other elements formed deeper inside are displayed.

  Referring to FIG. 2D, in the existing display method, it is understood that at least the side surfaces 4b and 6c are side surfaces formed on the inner side from the surface of the model 3 because the unevenness of the object is represented by shading. However, it cannot be easily determined whether the side surfaces 6a and 6b are deeper than the side surfaces 4b and 6c from the surface or at the same depth.

  From the selection of the side surfaces described above, the side surfaces 6a and 6b are the side surfaces of the element located deeper than the elements having the side surfaces 4b and 6c, but the user can only guess from the procedure of the operation performed by himself.

  Therefore, in the present embodiment, display control for improving the visibility at the time of element search for the model 3 created by the simulation is realized. An overview of display control in this embodiment will be described with reference to FIGS.

  In the present embodiment, when the model 3 is created by simulation, the position of the center of gravity of the model 3 is specified. FIG. 3 is a diagram illustrating an example of the center of gravity position. In FIG. 3, the gravity center position 7c of the model 3 of FIG. 1 obtained by calculation is shown. In this example, the center-of-gravity position 7c is obtained as the reference position, but may be the center position depending on the model shape. The reference position may be appropriately selected by the user.

  When the center of gravity position 7c is specified, in this embodiment, concentric circles are set at intervals determined with respect to the model 3 around the center of gravity position 7c, and different colors are assigned to the intervals between the circles. Model 3 is displayed. Hereinafter, the interval between a concentric circle and an adjacent concentric circle is referred to as a “concentric lattice”.

  FIG. 4 is a diagram illustrating an example of color coding for each concentric lattice. FIG. 4 shows an example of color coding performed on the model 3. Concentric circles are set at equal intervals from the center of gravity 7c to the farthest position 7p. A different color is assigned to each concentric lattice, and the color inside the model 3 is the same.

  A display example in the present embodiment when the user digs down the same position described in the above-described existing display method for the color-coded model 3 will be described with reference to FIG. FIG. 5 is a diagram for explaining an example of a search performed by drilling down from the surface of the model.

  In FIGS. 5A to 5C, the side surface and the selection order selected by the user are the same as those in FIGS. 2A to 2C. However, in FIG. 5D, the side surface 4b and the side surface 6c are the same color, and the side surface 6a and the side surface 6b are the same color. Here, the colors of the side surface 4b and the side surface 6c are darker due to the shadow, but the side surface 4b and the side surface 6c are the same color as the color of the surface of the model 3. The side surface 4 b and the side surface 6 c are side surfaces of elements that form the surface of the model 3.

  On the other hand, the side surface 6a and the side surface 6b are displayed in a different color from the side surfaces 4b and 6c. Therefore, it turns out that it is the side surface of the element in a position deeper than the position of the element formed by the side surface 4b and the side surface 6c. The user intuitively grasps that the side surface 4b and the side surface 6c are different in depth from the side surface 6a and the side surface 6b, and the side surface 6a and the side surface 6b are deeper than the side surface 4b and the side surface 6c. It is possible.

  The display control apparatus 100 that implements this embodiment described above has a hardware configuration as shown in FIG. FIG. 6 is a diagram illustrating a hardware configuration example of the display control apparatus. 6, the display control device 100 includes a CPU (Central Processing Unit) 11, a main storage device 12, an auxiliary storage device 13, an input device 14, a display device 15, and the like connected to each other via a bus B. It has a communication I / F (interface) 17 and a drive device 18 and is connected to the bus B.

  The CPU 11 corresponds to a processor that controls the display control device 100. The main storage device 12 includes a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. As the auxiliary storage device 13, an HDD (Hard Disk Drive) or the like is used. The input device 14 includes a mouse, a keyboard, and the like. The communication I / F 17 performs communication through a wired or wireless network. Communication by the communication I / F 17 is not limited to wireless or wired.

  The CPU 11 uses a part of the main storage device 12 as a work area and executes programs stored in the main storage device 12 or the drive device 18 to perform various processes according to the present embodiment described below. Realize.

  The drive device 18 interfaces the display control device 100 with a storage medium 19 (for example, a CD-ROM (Compact Disc Read-Only Memory) or the like) set in the drive device 18.

  The storage medium 19 for storing the program according to the present embodiment is not limited to a CD-ROM, and is one or more non-transitory tangible having a structure that can be read by a computer. Any medium that is (tangible) can be used. As a computer-readable storage medium, in addition to a CD-ROM, a DVD (Digital Versatile Disk) disk, a portable recording medium such as a USB memory, or a semiconductor memory such as a flash memory may be used.

  FIG. 7 is a diagram illustrating a functional configuration example of the display control apparatus according to the present embodiment. In FIG. 7, the display control apparatus 100 includes a model creation unit 41 and a display control unit 42. The model creation unit 41 and the display control unit 42 are realized by processing executed by the CPU 11 of the display control apparatus 100 by a program installed in the display control apparatus 100. The storage unit 130 stores a node coordinate DB 51, an element DB 53, reference position information 54, a depth information table 55, and the like.

  The model creation unit 41 is a processing unit that creates the model 3 by simulation using numerical analysis. The element DB 53 and the node coordinate DB 51 are generated in the storage unit 130 by the model creation unit 41. The model creation unit 41 may obtain a physical quantity by simulation. The model 3 is drawn in three dimensions by the display control unit 42 using the node coordinate DB 51 and the element DB 53 created by the model creation unit 41 and displayed on the display device 15. The node coordinate DB 51 and the element DB 53 correspond to element information.

  The display control unit 42 is a processing unit that sets a reference point in the model 3 and draws and displays the model 3 colored according to the distance from the determined reference point in three dimensions, and includes a reference position specifying unit 43, A lattice number determination unit 45 and a color-coded display unit 47 are provided.

  The reference position specifying unit 43 is a processing unit that specifies the reference position of the model 3 and each element with reference to the element DB 53 and the node coordinate DB 51. The center of gravity position, the center position, etc. may be specified as the reference position. In the present embodiment, a case where the center of gravity is set will be described.

  The grid number determination unit 45 refers to the element DB 53 and the nodal coordinate DB 51 and determines the number of concentric circles from the distance to the position of the element of the model 3 where the distance from the determined reference position is the maximum and the average value of the element sizes. And a concentric lattice to which the element belongs for each element. Further, the lattice number determination unit 45 defines the element located farthest from the reference position as the element located on the outermost periphery according to the number of concentric circular lattices, and the depth indicating the depth in the direction from the element to the reference position. The information table 55 is created in the storage unit 130.

  The color-coded display unit 47 refers to the element DB 53 and the depth information table 55, and in the initial state, displays the shape of the surface of the model 3 in a three-dimensional manner, and allows the user to hide the user's elements. Accordingly, the display device 15 is controlled so as to perform display according to the change in depth.

  In the functional configuration example illustrated in FIG. 7, the model creation unit 41 may be provided in another device. In this case, the model creation unit 41 is not a processing unit essential to the display control apparatus 100 in the present embodiment, and can be omitted. Further, the node coordinate DB 51 and the element DB 53 may be temporarily acquired from a storage device on a network accessible by the display control device 100.

  FIG. 8 is a diagram illustrating a data configuration example. Referring to FIG. 8, the node coordinate DB 51 is a database that records and manages information on each node of the element generated by the model creation unit 41, and includes items such as a node ID, coordinates, and physical quantity. The node ID indicates an identifier uniquely given to each node. The coordinate indicates the three-dimensional coordinate of the node. The physical quantity indicates the physical quantity at the position of the node obtained by the simulation.

  In this example, the node specified by the node ID “tn_1” is located at the coordinates (x1, y1, z1), and the physical quantity is “0.00123”. Similarly, for the node ID “tn_4”, coordinates (x4, y4, z4), a physical quantity “0.00131”, and the like are shown. Similar information is also shown for other node IDs.

  The element DB 53 is a database that records and manages information of each element generated by the model creation unit 41, and includes items such as element ID, first node ID to fourth node ID, barycentric coordinates, and depth identifier. The element ID indicates an identifier uniquely given to each element. The first to fourth node IDs indicate the identifiers of the four nodes of the element. The barycentric coordinates indicate the barycentric position of the element. The depth identifier indicates an identifier that identifies the concentric lattice in which the element is located.

  In this example, the element identified by the element ID “ys_A” is identified by the first node ID “tn_1”, the second node ID “tn_2”, the third node ID “tn_3”, and the fourth node ID “tn_4”. The center of gravity coordinates are “(xg1, yg1, zg1)”, and the depth identifier “CLR11” indicates the position from the center of gravity. Similar information is shown for the other elements.

  The depth information table 55 is a table for managing information related to depth, and includes items such as a depth identifier and expression information. The depth identifier indicates an identifier representing a distance from the reference position when the reference position is the maximum depth. The expression information indicates display contents associated with the depth identifier. In the present embodiment, the expression information specifies a color. As an example, a different color is designated for each depth identifier according to a gradation in which a concentric lattice including the deepest reference position is blue and a concentric lattice where an element farthest from the reference position is purple is purple.

  Each of the first node ID to the fourth node ID of the element DB 53 is associated with the node ID of the node coordinate DB 51. Further, the depth identifier of the element DB 53 is associated with the depth identifier of the depth information table 55.

  FIG. 9 is a flowchart for explaining the first display control processing by the display control unit in the present embodiment. In FIG. 9, the processes of steps S71 and S72 correspond to the reference position specifying process by the reference position specifying unit 43, the processes of steps S73 to S77 correspond to the grid number determining process by the grid number determining unit 45, and steps S78 to S82. This processing corresponds to the color-coded display processing by the color-coded display unit 47.

  In the display control unit 42, the reference position specifying unit 43 acquires the barycentric position of the model 3 (step S71). The reference position specifying unit 43 calculates the barycentric coordinates of the model 3 with reference to the node coordinate DB 51 and the element DB 53. Reference position information 54 indicating the barycentric coordinates of the obtained model 3 is stored in the storage unit 130.

  The reference position specifying unit 43 further acquires the position of the center of gravity of each element (step S72). The reference position specifying unit 43 refers to each record in order from the element DB 53, acquires the coordinates and physical quantities of each node from the node coordinate DB 51 using each of the first node ID to the fourth node ID, and obtains the barycentric coordinates. calculate. The obtained barycentric coordinates are stored in the barycentric coordinates of the record referred to in the element DB 53. When the barycentric positions of all the elements of the model 3 are acquired, the reference position specifying process by the reference position specifying unit 43 ends.

  The lattice number determination unit 45 acquires the distance A from the centroid of the model 3 to the centroid of the furthest element (step S73). The lattice number determination unit 45 calculates the absolute value of the difference between the barycentric coordinates of each element managed by the element DB 53 and the reference position indicated by the reference position information 54, and sets the maximum absolute value as the distance A. .

  Then, for each element in the element DB 53, the lattice number determination unit 45 calculates an element size based on the coordinates of the nodes obtained by referring to the node coordinate DB 51, and obtains an average value B of these element sizes (step S74). ). As an example, the longest distance among the perpendiculars to the nodes facing each side of the element is adopted as the element size, and the total element size of all elements is divided by the number of all elements to obtain the element size The average value B may be obtained.

Next, the lattice number determination unit 45 obtains the concentric lattice number C (step S75). The number C of concentric lattices is
Number of concentric circles C = distance A ÷ average element size B
Is obtained. The lattice number determination unit 45 creates the depth information table 55 in the storage unit 130 based on the obtained concentric lattice number C. In creating the depth information table 55, the lattice number determination unit 45 determines depth identifiers in order of increasing distance from the position of the center of gravity of the model 3, and sets colors in the expression information so as to be gradation.

  The lattice number determination unit 45 creates C concentric circular lattices from the centroid positions of the model 3, and assigns the same color to elements having centroids that are not the same concentric circles (step S76). The lattice number determination unit 45 sets a depth identifier for an element located in each concentric lattice in the element DB 53.

  As an example, if the centroid coordinates of the element are located within the 10th concentric lattice including the centroid position of the model 3, “CLR10” is set as the depth identifier, and the centroid coordinates of the element are within the 11th concentric lattice. If it is located, set “CLR11” as the depth identifier. The same processing is performed up to the C-th concentric lattice. The concentric lattice is specified by calculating the distance from the centroid coordinates of each element in the element DB 53 and the centroid coordinates of the model 3 indicated by the reference position information 54 and dividing the obtained distance by the average value B of the element sizes. It is done. When depth identifiers are set for all records in the element DB 53, the grid number determination process by the grid number determination unit 45 ends, and the color classification display process by the color classification display unit 47 is performed.

  Next, the color classification display unit 47 refers to the element DB 53 and the depth information table 55, and displays the elements of the model 3 on the display device 15 by color classification according to the depth (step S78). Thereafter, the color-coded display unit 47 determines whether or not an element selection by the user for the displayed model 3 has been detected (step S79). When element selection is not detected (NO in step S79), the color-coded display unit 47 proceeds to step S82.

  When element selection is detected (YES in step S79), the color-coded display unit 47 specifies an element sharing three nodes among the four nodes of the selected element (step S80). As an example, the color-coded display unit 47 acquires, from the element DB 53, the first node ID, the second node ID, the third node ID, and the fourth node ID associated with the element ID of the selected element. Of the four node IDs, a record having the same three node IDs is extracted from the element DB 53. The extracted record is temporarily stored in the storage unit 130.

  The color-coded display unit 47 displays the element specified in step S80 based on the expression information (step S81). The color-coded display unit 47 acquires the depth identifier by referring to the record extracted from the element DB 53, and acquires the expression information by searching the depth information table 55 using the acquired depth identifier. The acquired expression information is applied to the element, and the element is displayed in the area of the element for which non-display of the model 3 displayed on the display device 15 is selected.

  The color classification display unit 47 determines whether or not the end is detected (step S82). If the end is not detected (NO in step S82), the color-coded display unit 47 returns to step S79 and repeats the same processing as described above. On the other hand, when the end is detected (YES in step S82), the color-coded display process by the color-coded display unit 47 is finished, and further, the first display control process by the display control unit 42 is finished.

  The color-coded display processing by the color-coded display unit 47 will be described using an example of two adjacent elements. FIG. 10 is a diagram for explaining the color-coded display processing. FIG. 10A illustrates two adjacent elements having an element ID “ys_Q” and an element ID “ys_Q” among a plurality of elements constituting the model 3. Hereinafter, the respective elements are referred to as an element ys_A and an element ys_Q. Similarly, the other items will be described using identifiers as names.

  In the example of FIG. 10A, only the side surface sk_A1 is shown on the display device 15 among the four side surfaces of the element ys_A, and the side surface sk_A1 is displayed in red because the center of gravity g1 of the element ys_A is located in the concentric lattice CLR011. The On the other hand, the center of gravity g2 of the element ys_Q is displayed in green according to the display information because it is located in the concentric circular lattice CLR010, but is hidden by other elements, and neither side surface is displayed on the display device 15.

  In this state, when the user selects the side surface sk_A1 of the element ys_A, that is, when the non-display of the element ys_A is instructed, the color-coded display unit 47 extracts all records of elements adjacent to the element ys_A from the element DB 53.

  A table TB1 illustrated in FIG. 10B shows a data example of the extracted record. Referring to FIG. 10B, a record of three elements adjacent to element ys_A including element ys_Q is extracted. The element ys_Q shares the three nodes of the node tn_1, the node tn_2, and the node tn_3 with the element ys_A.

  Further, since the center of gravity g2 of the element ys_Q is located in the concentric circular lattice CLR010 as described above, the color-coded display unit 47 includes the node tn_1, the node tn_2, and the node tn_3 according to the detection of the non-display of the element ys_A. The side surface sk_Q2 of the element ys_Q is displayed on the display device 15 in green specified by the display information. The same processing is performed for the other two elements, and the side surfaces of the three nodes shared with the element ys_A are colored and displayed in a color corresponding to the position of the center of gravity of each element.

  Next, in addition to the first display control process described above, visibility is enhanced by highlighting the side surface of the element selected by the user and the side surface of another element sharing any of the three sides of the side surface. The second display control process to be further improved will be described.

  FIG. 11 is a diagram illustrating another display example of the present embodiment. 11A and 11B correspond to FIGS. 5A and 5B. In FIG. 11A, when the user selects an element ys_E, other elements ys_F, ys_G, and ys_H that share two of the three nodes tn_11, tn_12, and tn_13 of the selected side surface are specified. Hereinafter, the surface displayed on the display device 15 among the four side surfaces of the tetrahedral element is referred to as a display surface.

  FIG. 11B is a diagram showing an example of highlight display. Based on the display surface of the selected element ys_E, the display surfaces of the other elements ys_F, ys_G, and ys_H are highlighted. By highlighting, even when the display is hidden, it can be recognized more clearly as a region of the selected display surface, and the display surface of other elements sharing the side can be confirmed more clearly.

  The second display control process including the cooperative display process for performing such cooperative display will be described. FIG. 12 is a flowchart for explaining the second display control processing by the display control unit in the present embodiment. In FIG. 12, the same reference numerals are given to the same processes as the first display control process of FIG. 9, and the detailed description thereof is omitted. The highlighting process corresponds to steps S79-2 and S79-4.

  As shown in FIG. 12, after the processing from steps S71 to S78 as in the first display control processing, if the element selection is detected in the second display control processing (YES in step S79), the color-coded display unit 47 selects the selection. Of the three nodes on the display surface of the selected element, another element sharing the two nodes is specified (step S79-2). The color-coded display unit 47 highlights the other specified display surface (step S79-4).

  Thereafter, the color-coded display unit 47 performs steps S80 to S82 as in the first display control process. The highlighting process in steps S79-2 and S79-4 may be performed after the process in step S81.

  The highlighting process in steps S79-2 and S79-4 in FIG. 11 will be described. FIG. 13 is a diagram for explaining the highlighting process. In FIG. 13, the color-coded display unit 47 specifies and extracts the node on the display surface from the first node ID to the fourth node ID of the selected element from the element DB 53 in accordance with the selection of the element. In the example of FIG. 11, the nodes tn_11, tn_12, and tn_13 of the element ys_E are extracted and stored in the table TB2 temporarily created in the storage unit 130.

  The color-coded display unit 47 further searches the element DB 53 with a combination of the two nodes of the nodes tn_11, tn_12, and tn_13, identifies the element ys_F, the element ys_G, and the element ys_H, and displays the display on the display device 15 Three nodes of the surface are extracted. The identified element ID and the three nodes are stored in the table TB2. As shown in FIG. 11B, the color-coded display unit 47 highlights the outlines of adjacent elements according to the non-display designation with reference to the table TB2.

  Even when an element that is displayed by the user being hidden is further hidden, the outline of the adjacent element is highlighted, so that the visibility of the hidden element can be further improved. .

  FIG. 14 is a diagram illustrating an example of highlighting when digging is performed. 14A and 14B correspond to FIGS. 5C and 5D. In FIG. 14A, when the user selects the element ys_K to be hidden, the element ys_K and the element ys_K are adjacent to each other in the area of the element ys_K displayed on the display device 15 as shown in FIG. The outlines of the elements ys_L and ys_M to be displayed are highlighted.

  In a plurality of elements arranged in a complex manner in the model 3, it is possible to easily grasp the difference in positional relationship and depth between the non-displayed element and the adjacent element.

  As described above, in this embodiment, the visibility of the position of each element in the model 3 when the three-dimensional model 3 is displayed on the display device 15 can be improved.

  The present invention is not limited to the specifically disclosed embodiments, and can be principally modified and changed without departing from the scope of the claims.

The following additional notes are further disclosed with respect to the embodiment including the above examples.
(Appendix 1)
Referencing the storage unit storing the information of each element of the 3D model, coloring each element of the 3D model according to the distance from the reference position of the 3D model to the element,
A three-dimensional model display program for causing a computer to perform a process of displaying a three-dimensional model on a display unit with colored elements.
(Appendix 2)
The reference position is a gravity center position of the three-dimensional model,
The three-dimensional model display program according to appendix 1, wherein the distance is a length from a centroid position of the three-dimensional model to a centroid position of the element.
(Appendix 3)
In the computer,
In the three-dimensional model, calculate the distance to the center of gravity of the element farthest from the reference position,
Calculate the average element size,
Calculate the number of concentric lattices centered on the reference position from the obtained distance and the average value,
A different color is assigned to each concentric lattice based on the obtained number of lattices, and each element of the three-dimensional model is colored with the color assigned to the concentric lattice where the element is located. The three-dimensional model display program according to appendix 1 or 2.
(Appendix 4)
In the computer,
In response to the selection to hide an element on the three-dimensional model, each element adjacent to the element in the three-dimensional model is displayed with a color assigned to the concentric lattice in which the element is located. The three-dimensional model display program according to appendix 3, characterized in that the processing is performed.
(Appendix 5)
The element is a tetrahedron;
In the computer,
From the information of each element stored in the storage unit, specify the other element sharing the three nodes among the four nodes of the selected element,
The three-dimensional model display program according to appendix 4, wherein the specified other element is displayed by being colored with a color assigned to the concentric lattice in which the other element is located.
(Appendix 6)
The three-dimensional model display program according to any one of supplementary notes 1 to 4, wherein a color attached to the element represents a depth.
(Appendix 7)
Referencing the storage unit storing the information of each element of the 3D model, coloring each element of the 3D model according to the distance from the reference position of the 3D model to the element,
A three-dimensional model display method in which a computer performs a process of displaying a three-dimensional model on a display unit with colored elements.
(Appendix 8)
A storage unit storing information of each element of the three-dimensional model;
Display control for referring to the storage unit, coloring each element of the 3D model according to the distance from the reference position of the 3D model to the element, and displaying the 3D model on the display unit with the colored element And
A display control device.
(Appendix 9)
According to the selection to hide the elements on the three-dimensional model, the storage unit storing the information of each element of the three-dimensional model is used to identify and identify the elements adjacent to the hidden elements A three-dimensional model display program for causing a computer to perform processing for emphasizing elements and displaying them on a display unit.
(Appendix 10)
In the computer,
Of the three nodes on the display surface of the selected element, identify other elements that share the two nodes,
Highlight the display surface of other identified elements,
The three-dimensional model display program according to appendix 9, which causes a computer to perform processing.
(Appendix 11)
According to the selection to hide the elements on the three-dimensional model, the storage unit storing the information of each element of the three-dimensional model is used to identify and identify the elements adjacent to the hidden elements A three-dimensional model display program for causing a computer to perform processing for emphasizing elements and displaying them on a display unit.
(Appendix 12)
A storage unit storing information of each element of the three-dimensional model;
In response to the selection to hide the element on the three-dimensional model, the element adjacent to the hidden element is identified by referring to the information of each element stored in the storage unit, and the identified element A display control unit having a display control unit for emphasizing and displaying on the display unit.

3 model 11 CPU
12 Main storage device 13 Auxiliary storage device 14 Input device 15 Display device 17 Communication I / F
DESCRIPTION OF SYMBOLS 18 Drive apparatus 19 Storage medium 41 Model preparation part 42 Display control part 43 Reference position specific | specification part 45 Grid number determination part 47 Color classification display part 51 Node coordinate DB
53 Element DB
54 Reference position information 55 Depth information table

Claims (10)

Referencing the storage unit storing the information of each element of the three-dimensional model, coloring each element of the three-dimensional model according to the distance from the reference position of the three-dimensional model to the element,
A three-dimensional model display program for causing a computer to perform a process of displaying a three-dimensional model on a display unit with colored elements. The reference position is a gravity center position of the three-dimensional model,
2. The three-dimensional model display program according to claim 1, wherein the distance is a length from a centroid position of the three-dimensional model to a centroid position of the element. In the computer,
In the three-dimensional model, calculate the distance to the center of gravity of the element farthest from the reference position,
Calculate the average element size,
Calculate the number of concentric grids centered on the reference position from the obtained distance and the average value,
A different color is assigned to each concentric lattice based on the obtained number of lattices, and each element of the three-dimensional model is colored with the color assigned to the concentric lattice where the element is located. The three-dimensional model display program according to claim 1 or 2. In the computer,
In response to the selection to hide an element on the three-dimensional model, each element adjacent to the element in the three-dimensional model is displayed with a color assigned to the concentric lattice in which the element is located. The three-dimensional model display program according to claim 3, wherein the processing is performed. Referencing the storage unit storing the information of each element of the three-dimensional model, coloring each element of the three-dimensional model according to the distance from the reference position of the three-dimensional model to the element,
A three-dimensional model display method in which a computer performs a process of displaying a three-dimensional model on a display unit with colored elements. A storage unit storing information of each element of the three-dimensional model;
Display control for referring to the storage unit, coloring each element of the 3D model according to the distance from the reference position of the 3D model to the element, and displaying the 3D model on the display unit with the colored element And
A display control device. According to the selection to hide the elements on the three-dimensional model, the storage unit storing the information of each element of the three-dimensional model is used to identify and identify the elements adjacent to the hidden elements A three-dimensional model display program for causing a computer to perform processing for emphasizing elements and displaying them on a display unit. In the computer,
Of the three nodes on the display surface of the selected element, identify other elements that share the two nodes,
Highlight the display surface of other identified elements,
The three-dimensional model display program according to claim 7, which causes a computer to perform processing. According to the selection to hide the elements on the three-dimensional model, the storage unit storing the information of each element of the three-dimensional model is used to identify and identify the elements adjacent to the hidden elements A three-dimensional model display program for causing a computer to perform processing for emphasizing elements and displaying them on a display unit. A storage unit storing information of each element of the three-dimensional model;
In response to the selection to hide the element on the three-dimensional model, the element adjacent to the hidden element is identified by referring to the information of each element stored in the storage unit, and the identified element A display control unit having a display control unit for emphasizing and displaying on the display unit.